// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/base/net_errors.h"

#include <winsock2.h>

#include "base/logging.h"

namespace net {

// Map winsock and system errors to Chromium errors.
Error MapSystemError(logging::SystemErrorCode os_error)
{
    if (os_error != 0)
        DVLOG(2) << "Error " << os_error;

    // There are numerous Winsock error codes, but these are the ones we thus far
    // find interesting.
    switch (os_error) {
    case WSAEWOULDBLOCK:
    case WSA_IO_PENDING:
        return ERR_IO_PENDING;
    case WSAEACCES:
        return ERR_ACCESS_DENIED;
    case WSAENETDOWN:
        return ERR_INTERNET_DISCONNECTED;
    case WSAETIMEDOUT:
        return ERR_TIMED_OUT;
    case WSAECONNRESET:
    case WSAENETRESET: // Related to keep-alive
        return ERR_CONNECTION_RESET;
    case WSAECONNABORTED:
        return ERR_CONNECTION_ABORTED;
    case WSAECONNREFUSED:
        return ERR_CONNECTION_REFUSED;
    case WSA_IO_INCOMPLETE:
    case WSAEDISCON:
        return ERR_CONNECTION_CLOSED;
    case WSAEISCONN:
        return ERR_SOCKET_IS_CONNECTED;
    case WSAEHOSTUNREACH:
    case WSAENETUNREACH:
        return ERR_ADDRESS_UNREACHABLE;
    case WSAEADDRNOTAVAIL:
        return ERR_ADDRESS_INVALID;
    case WSAEMSGSIZE:
        return ERR_MSG_TOO_BIG;
    case WSAENOTCONN:
        return ERR_SOCKET_NOT_CONNECTED;
    case WSAEAFNOSUPPORT:
        return ERR_ADDRESS_UNREACHABLE;
    case WSAEINVAL:
        return ERR_INVALID_ARGUMENT;
    case WSAEADDRINUSE:
        return ERR_ADDRESS_IN_USE;

    // System errors.
    case ERROR_FILE_NOT_FOUND: // The system cannot find the file specified.
        return ERR_FILE_NOT_FOUND;
    case ERROR_PATH_NOT_FOUND: // The system cannot find the path specified.
        return ERR_FILE_NOT_FOUND;
    case ERROR_TOO_MANY_OPEN_FILES: // The system cannot open the file.
        return ERR_INSUFFICIENT_RESOURCES;
    case ERROR_ACCESS_DENIED: // Access is denied.
        return ERR_ACCESS_DENIED;
    case ERROR_INVALID_HANDLE: // The handle is invalid.
        return ERR_INVALID_HANDLE;
    case ERROR_NOT_ENOUGH_MEMORY: // Not enough storage is available to
        return ERR_OUT_OF_MEMORY; // process this command.
    case ERROR_OUTOFMEMORY: // Not enough storage is available to complete
        return ERR_OUT_OF_MEMORY; // this operation.
    case ERROR_WRITE_PROTECT: // The media is write protected.
        return ERR_ACCESS_DENIED;
    case ERROR_SHARING_VIOLATION: // Cannot access the file because it is
        return ERR_ACCESS_DENIED; // being used by another process.
    case ERROR_LOCK_VIOLATION: // The process cannot access the file because
        return ERR_ACCESS_DENIED; // another process has locked the file.
    case ERROR_HANDLE_EOF: // Reached the end of the file.
        return ERR_FAILED;
    case ERROR_HANDLE_DISK_FULL: // The disk is full.
        return ERR_FILE_NO_SPACE;
    case ERROR_FILE_EXISTS: // The file exists.
        return ERR_FILE_EXISTS;
    case ERROR_INVALID_PARAMETER: // The parameter is incorrect.
        return ERR_INVALID_ARGUMENT;
    case ERROR_BUFFER_OVERFLOW: // The file name is too long.
        return ERR_FILE_PATH_TOO_LONG;
    case ERROR_DISK_FULL: // There is not enough space on the disk.
        return ERR_FILE_NO_SPACE;
    case ERROR_CALL_NOT_IMPLEMENTED: // This function is not supported on
        return ERR_NOT_IMPLEMENTED; // this system.
    case ERROR_INVALID_NAME: // The filename, directory name, or volume
        return ERR_INVALID_ARGUMENT; // label syntax is incorrect.
    case ERROR_DIR_NOT_EMPTY: // The directory is not empty.
        return ERR_FAILED;
    case ERROR_BUSY: // The requested resource is in use.
        return ERR_ACCESS_DENIED;
    case ERROR_ALREADY_EXISTS: // Cannot create a file when that file
        return ERR_FILE_EXISTS; // already exists.
    case ERROR_FILENAME_EXCED_RANGE: // The filename or extension is too long.
        return ERR_FILE_PATH_TOO_LONG;
    case ERROR_FILE_TOO_LARGE: // The file size exceeds the limit allowed
        return ERR_FILE_NO_SPACE; // and cannot be saved.
    case ERROR_VIRUS_INFECTED: // Operation failed because the file
        return ERR_FILE_VIRUS_INFECTED; // contains a virus.
    case ERROR_IO_DEVICE: // The request could not be performed
        return ERR_ACCESS_DENIED; // because of an I/O device error.
    case ERROR_POSSIBLE_DEADLOCK: // A potential deadlock condition has
        return ERR_ACCESS_DENIED; // been detected.
    case ERROR_BAD_DEVICE: // The specified device name is invalid.
        return ERR_INVALID_ARGUMENT;
    case ERROR_BROKEN_PIPE: // Pipe is not connected.
        return ERR_CONNECTION_RESET;

    case ERROR_SUCCESS:
        return OK;
    default:
        LOG(WARNING) << "Unknown error " << os_error
                     << " mapped to net::ERR_FAILED";
        return ERR_FAILED;
    }
}

} // namespace net
